if not modules then modules = { } end modules ['math-dim'] = { version = 1.001, comment = "companion to math-ini.mkiv", author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", copyright = "PRAGMA ADE / ConTeXt Development Team", license = "see context related readme files" } -- Beware: only Taco really understands in depth what these dimensions do so -- if you run into problems ... local abs, next = math.abs, next mathematics = mathematics or { } local defaults = { ['axis']={ ['default']={ "AxisHeight", "axis_height" }, }, ['accent_base_height']={ ['default']={ "AccentBaseHeight", "x_height" }, }, ['fraction_del_size']={ ['default']={ "FractionDelimiterSize", "delim2" }, ['cramped_display_style']={ "FractionDelimiterDisplayStyleSize", "delim1" }, ['display_style']={ "FractionDelimiterDisplayStyleSize", "delim1" }, }, ['fraction_denom_down']={ ['default']={ "FractionDenominatorShiftDown", "denom2" }, ['cramped_display_style']={ "FractionDenominatorDisplayStyleShiftDown", "denom1" }, ['display_style']={ "FractionDenominatorDisplayStyleShiftDown", "denom1" }, }, ['fraction_denom_vgap']={ ['default']={ "FractionDenominatorGapMin", "default_rule_thickness" }, ['cramped_display_style']={ "FractionDenominatorDisplayStyleGapMin", "3*default_rule_thickness" }, ['display_style']={ "FractionDenominatorDisplayStyleGapMin", "3*default_rule_thickness" }, }, ['fraction_num_up']={ ['default']={ "FractionNumeratorShiftUp", "num2" }, ['cramped_display_style']={ "FractionNumeratorDisplayStyleShiftUp", "num1" }, ['display_style']={ "FractionNumeratorDisplayStyleShiftUp", "num1" }, }, ['fraction_num_vgap']={ ['default']={ "FractionNumeratorGapMin", "default_rule_thickness" }, ['cramped_display_style']={ "FractionNumeratorDisplayStyleGapMin", "3*default_rule_thickness" }, ['display_style']={ "FractionNumeratorDisplayStyleGapMin", "3*default_rule_thickness" }, }, ['fraction_rule']={ ['default']={ "FractionRuleThickness", "default_rule_thickness" }, }, ['limit_above_bgap']={ ['default']={ "UpperLimitBaselineRiseMin", "big_op_spacing3" }, }, ['limit_above_kern']={ ['default']={ "0", "big_op_spacing5" }, }, ['limit_above_vgap']={ ['default']={ "UpperLimitGapMin", "big_op_spacing1" }, }, ['limit_below_bgap']={ ['default']={ "LowerLimitBaselineDropMin", "big_op_spacing4" }, }, ['limit_below_kern']={ ['default']={ "0", "big_op_spacing5" }, }, ['limit_below_vgap']={ ['default']={ "LowerLimitGapMin", "big_op_spacing2" }, }, --~ ['....']={ --~ ['default']={ "DisplayOperatorMinHeight", "....." }, --~ }, ['overbar_kern']={ ['default']={ "OverbarExtraAscender", "default_rule_thickness" }, }, ['overbar_rule']={ ['default']={ "OverbarRuleThickness", "default_rule_thickness" }, }, ['overbar_vgap']={ ['default']={ "OverbarVerticalGap", "3*default_rule_thickness" }, }, ['quad']={ ['default']={ "font_size(f)", "math_quad" }, }, ['radical_kern']={ ['default']={ "RadicalExtraAscender", "default_rule_thickness" }, }, ['radical_rule']={ ['default']={ "RadicalRuleThickness", "" }, }, ['radical_vgap']={ ['default']={ "RadicalVerticalGap", "default_rule_thickness+(abs(default_rule_thickness)/4)" }, ['display_style']={ "RadicalDisplayStyleVerticalGap", "default_rule_thickness+(abs(math_x_height)/4)" }, }, ['space_after_script']={ ['default']={ "SpaceAfterScript", "script_space" }, }, ['stack_denom_down']={ ['default']={ "StackBottomShiftDown", "denom2" }, ['cramped_display_style']={ "StackBottomDisplayStyleShiftDown", "denom1" }, ['display_style']={ "StackBottomDisplayStyleShiftDown", "denom1" }, }, ['stack_num_up']={ ['default']={ "StackTopShiftUp", "num3" }, ['cramped_display_style']={ "StackTopDisplayStyleShiftUp", "num1" }, ['display_style']={ "StackTopDisplayStyleShiftUp", "num1" }, }, ['stack_vgap']={ ['default']={ "StackGapMin", "3*default_rule_thickness" }, ['cramped_display_style']={ "StackDisplayStyleGapMin", "7*default_rule_thickness" }, ['display_style']={ "StackDisplayStyleGapMin", "7*default_rule_thickness" }, }, ['sub_shift_down']={ ['default']={ "SubscriptShiftDown", "sub1" }, }, ['sub_shift_drop']={ ['default']={ "SubscriptBaselineDropMin", "sub_drop" }, }, ['sub_sup_shift_down']={ ['default']={ "SubscriptShiftDown", "sub2" }, -- todo }, ['sub_top_max']={ ['default']={ "SubscriptTopMax", "abs(math_x_height*4)/5" }, }, ['subsup_vgap']={ ['default']={ "SubSuperscriptGapMin", "4*default_rule_thickness" }, }, ['sup_bottom_min']={ ['default']={ "SuperscriptBottomMin", "abs(math_x_height)/4" }, }, ['sup_shift_drop']={ ['default']={ "SuperscriptBaselineDropMax", "sup_drop" }, }, ['sup_shift_up']={ ['cramped_display_style']={ "SuperscriptShiftUpCramped", "sup3" }, ['cramped_script_script_style']={ "SuperscriptShiftUpCramped", "sup3" }, ['cramped_script_style']={ "SuperscriptShiftUpCramped", "sup3" }, ['cramped_text_style']={ "SuperscriptShiftUpCramped", "sup3" }, ['display_style']={ "SuperscriptShiftUp", "sup1" }, ['script_script_style']={ "SuperscriptShiftUp", "sup2" }, ['script_style']={ "SuperscriptShiftUp", "sup2" }, ['text_style']={ "SuperscriptShiftUp", "sup2" }, }, ['sup_sub_bottom_max']={ ['default']={ "SuperscriptBottomMaxWithSubscript", "abs(math_x_height*4)/5" }, }, ['underbar_kern']={ ['default']={ "UnderbarExtraDescender", "0" }, }, ['underbar_rule']={ ['default']={ "UnderbarRuleThickness", "default_rule_thickness" }, }, ['underbar_vgap']={ ['default']={ "UnderbarVerticalGap", "3*default_rule_thickness" }, }, ['connector_overlap_min']={ ['default']={ "MinConnectorOverlap", "0.25*default_rule_thickness" }, }, ['over_delimiter_vgap']={ ['default']={ "StretchStackGapBelowMin", "big_op_spacing1" }, }, ['over_delimiter_bgap']={ ['default']={ "StretchStackTopShiftUp", "big_op_spacing3" }, }, ['under_delimiter_vgap']={ ['default']={ "StretchStackGapAboveMin", "big_op_spacing2" }, }, ['under_delimiter_bgap']={ ['default']={ "StretchStackBottomShiftDown", "big_op_spacing4" }, }, ['radical_degree_before']={ ['default']={ "RadicalKernBeforeDegree", "(5/18)*quad" }, }, ['radical_degree_after']={ ['default']={ "RadicalKernAfterDegree", "(-10/18)*quad" }, }, ['radical_degree_raise']={ ['default']={ "RadicalDegreeBottomRaisePercent", "60" }, }, } local styles = { 'cramped_display_style', 'cramped_script_script_style', 'cramped_script_style', 'cramped_text_style', 'display_style', 'script_script_style', 'script_style', 'text_style', } for k, v in next, defaults do for _, s in next, styles do if not v[s] then v[s] = v.default end end end -- we cannot use a metatable because we do a copy (takes a bit more work) -- -- local mt = { } setmetatable(defaults,mt) -- -- mt.__index = function(t,s) -- return t.default or t.text_style or 0 -- end function mathematics.dimensions(dimens) if dimens.SpaceAfterScript then dimens.SubscriptShiftDownWithSuperscript = dimens.SubscriptShiftDown * 1.5 return { }, table.fastcopy(dimens) elseif dimens.AxisHeight or dimens.axis_height then local t = { } local math_x_height = dimens.x_height or 10*65526 local math_quad = dimens.quad or 10*65526 local default_rule_thickness = dimens.FractionDenominatorGapMin or dimens.default_rule_thickness or 0.4*65526 dimens["0"] = 0 dimens["60"] = 60 dimens["0.25*default_rule_thickness"] = default_rule_thickness / 4 dimens["3*default_rule_thickness"] = 3 * default_rule_thickness dimens["4*default_rule_thickness"] = 4 * default_rule_thickness dimens["7*default_rule_thickness"] = 7 * default_rule_thickness dimens["(5/18)*quad"] = (math_quad * 5) / 18 dimens["(-10/18)*quad"] = - (math_quad * 10) / 18 dimens["abs(math_x_height*4)/5"] = abs(math_x_height * 4) / 5 dimens["default_rule_thickness+(abs(default_rule_thickness)/4)"] = default_rule_thickness+(abs(default_rule_thickness) / 4) dimens["default_rule_thickness+(abs(math_x_height)/4)"] = default_rule_thickness+(abs(math_x_height) / 4) dimens["abs(math_x_height)/4"] = abs(math_x_height) / 4 dimens["abs(math_x_height*4)/5"] = abs(math_x_height * 4) / 5 dimens[""] = false dimens["script_space"] = false -- at macro level for variable, styles in next, defaults do local tt = { } for style, default in next, styles do local one, two = default[1], default[2] local value = dimens[one] if value then tt[style] = value else value = dimens[two] if value == false then tt[style] = nil else tt[style] = value or 0 end end end t[variable] = tt end --~ logs.report("warning", "version 0.47 is needed for proper delimited math") local d = { AxisHeight = t . axis . text_style, AccentBaseHeight = t . accent_base_height . text_style, FractionDenominatorDisplayStyleGapMin = t . fraction_denom_vgap . display_style, FractionDenominatorDisplayStyleShiftDown = t . fraction_denom_down . display_style, FractionDenominatorGapMin = t . fraction_denom_vgap . text_style, FractionDenominatorShiftDown = t . fraction_denom_down . text_style, FractionNumeratorDisplayStyleGapMin = t . fraction_num_vgap . display_style, FractionNumeratorDisplayStyleShiftUp = t . fraction_num_up . display_style, FractionNumeratorGapMin = t . fraction_num_vgap . text_style, FractionNumeratorShiftUp = t . fraction_num_up . text_style, FractionRuleThickness = t . fraction_rule . text_style, FractionDelimiterSize = t . fraction_del_size . text_style, FractionDelimiterDisplayStyleSize = t . fraction_del_size . display_style, LowerLimitBaselineDropMin = t . limit_below_bgap . text_style, LowerLimitGapMin = t . limit_below_vgap . text_style, OverbarExtraAscender = t . overbar_kern . text_style, OverbarRuleThickness = t . overbar_rule . text_style, OverbarVerticalGap = t . overbar_vgap . text_style, RadicalDisplayStyleVerticalGap = t . radical_vgap . display_style, RadicalExtraAscender = t . radical_kern . text_style, RadicalRuleThickness = t . radical_rule . text_style, RadicalVerticalGap = t . radical_vgap . text_style, RadicalKernBeforeDegree = t . radical_degree_before . display_style, RadicalKernAfterDegree = t . radical_degree_after . display_style, RadicalDegreeBottomRaisePercent = t . radical_degree_raise . display_style, SpaceAfterScript = t . space_after_script . text_style, StackBottomDisplayStyleShiftDown = t . stack_denom_down . display_style, StackBottomShiftDown = t . stack_denom_down . text_style, StackDisplayStyleGapMin = t . stack_vgap . display_style, StackGapMin = t . stack_vgap . text_style, StackTopDisplayStyleShiftUp = t . stack_num_up . display_style, StackTopShiftUp = t . stack_num_up . text_style, SubscriptBaselineDropMin = t . sub_shift_drop . text_style, SubscriptShiftDown = t . sub_shift_down . text_style, SubscriptShiftDownWithSuperscript = t . sub_sup_shift_down . text_style, SubscriptTopMax = t . sub_top_max . text_style, SubSuperscriptGapMin = t . subsup_vgap . text_style, SuperscriptBaselineDropMax = t . sup_shift_drop . text_style, SuperscriptBottomMaxWithSubscript = t . sup_sub_bottom_max . text_style, SuperscriptBottomMin = t . sup_bottom_min . text_style, SuperscriptShiftUp = t . sup_shift_up . text_style, SuperscriptShiftUpCramped = t . sup_shift_up . cramped_text_style, UnderbarExtraDescender = t . underbar_kern . text_style, UnderbarRuleThickness = t . underbar_rule . text_style, UnderbarVerticalGap = t . underbar_vgap . text_style, UpperLimitBaselineRiseMin = t . limit_above_bgap . text_style, UpperLimitGapMin = t . limit_above_vgap . text_style, MinConnectorOverlap = t . connector_overlap_min . text_style, StretchStackGapBelowMin = t . over_delimiter_vgap . text_style, StretchStackTopShiftUp = t . over_delimiter_bgap . text_style, StretchStackGapAboveMin = t . under_delimiter_vgap . text_style, StretchStackBottomShiftDown = t . under_delimiter_bgap . text_style, } d.AccentBaseHeight = 0 return t, d -- this might change else return { }, { } end end